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Finding the Fourth Proportional to 104,376.38, 156,299.61 and 87,464.93

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Solution

The fourth proportional to 104,376.38, 156,299.61 and 87,464.93 is: 130,975.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,376.38 : 156,299.61 = 87,464.93 : x
  2. Step 2: Convert to fraction form
    104,376.38/156,299.61 = 87,464.93/x
  3. Step 3: Cross multiply
    104,376.38x = 156,299.61 × 87,464.93
  4. Step 4: Simplify right side
    104,376.38x = 13,670,733,666.18
  5. Step 5: Solve for x
    x = 13,670,733,666.18/104,376.38
  6. Step 6: Final answer
    x = 130,975.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.